Roofing clip



G. A. HoLMAN ROOFING CLIP Oct. 6, '1931.'.

Filed sept.r 7, 192'/ v abtozmq Patented `Oct.v 6, 1931 PATENT oFFlcE IGEORGE A. EOLMLAJN', OF DAYTON, OHIO nooFINe can Application ledSeptember 7, 1927. Serial No. 217,957.

My invention relates to roofing, and more particularly to an anchor clipor attachment Vmember for securing sheet roofing.

While the present anchor clip or attachment member has been especiallydesigned for applying scalloped or so called diamond point shingles ofasphalt` impregnated felt or analogous material, such fastening devicesare also applicable to continuous strips or il@ roll roofing. There arenumerous forms of sheet roofing of diiferent composition or material inboth roll form and sectional or shingle form to which the presentinvention is applicable.

The clip or fastening member forming the subject matter hereof comprisesa short strip of flexible non-corrosive material, preferably copper,zinc, aluminum-or heavily galvanized iron, althoughother suitable rustresisting 20 materials may be substituted therefor. One

end of ithe strip is provided with a nailor with aI hole through which anail may be driven to. secure the strip to the roof structure.

This attached end of the anchor strip is then 25 covered and concealedbeneath the next section of roofing material, about the marginal edge ofwhich the anchor strip is bent into a U or hook shaped form. The end ofthe anchor strip thus brought into overlapping relation with thesuperposed roofing sheet or shingle is provided with a projecting spur,formed by perforating the anchor strip to provide an inwardly projectingpart which may be imbedded in the top surface of the attachedrooflngsheet, or shingle by a hammer blow. The material of such sheet roofingbeing of a plastic character, readily recelves the spur or projectionwhich does not entirely penetrate through such roofing sheet or shingle,but remains imbedded therein. The material of the roo-ng sheet orshingle becomes softened under inuence of summer heat, thus relaxing thestrain of the plastic roofing material closely adjacent to such spur andserving to seal the spur therein, permanently securing the anchor clip.

I am aware that heretofore sheet roofing l has been attached by means ofanchor hooks .embracing the margin -of the sheet with one end of the'anchor hook nailed beneath such l sheet. These prior devices, however,dependent upon the clamping eect of the hook shaped anchor clip, and donot involve any form of embedment or anchorage attachment to thesuperposed roofing sheet.

The object of the invention is to provide an anchor clip for sheetroofing which will be simple in construction, but ecient inoperat.ion,.easily applied and unlikely to get out of repair.

A further and important feature of the in vention is to provide ananchor clip to be bodily attached to the overlying roofing sheet as wellas to theunderlying roof structure.

A further object of the invention is to provide an anchor clip havinganchor means thereon for Iembedment in a roofing sheet vand furthermeans for anchoring such clip to the roofing structure beneath thesheet.

With the above primary and other incidental objects in view, as willmore fully appear in the specification the invention consists of thefeatures of construction, the parts and combinations thereof, or theirequivalents, as hereinafter 4described and set forth in the claims. v

Referring to the accompanying drawings, wherein is shown-the preferred,but obviously not necessarilythe only forms of embodiment of theinvention. Fig. l is a perspective view of a portion of a roof of sheetmaterial, the

overlapping sections of which are secured by the anchor strip formingthe subject matter hereof.' Fig. 2 is aj vertical sectional viewsomewhat enlarged, showing the relation of the anchor clip tothesuperposed roofing sheets and the modeof attachment. Figs. 3, 4 and 5are detaill perspective views of the anchor clipbefore application tothe roof, illustrating diferentforms of anchor projections. forembedment in the superposed roofing sheet, wherein Figs. 3 and 5 arereverse views of the preferred form of clip, and Fig. 4 is amodification thereof. Fig. 6 illustrates a further modification, whereinthe attachment nail is xedly secured to the anchor clip before beingdriven into'the roofing structure.

Like parts are indicated by similar char-` 'tinuous strips.

acters of reference throughout the several views.

In the accompanying drawings, 1-1 indicates superposed sheets or layersof roofing material. This material may be cut into small sections orshin les or may be laid in conn the present instance the roofing sheet.is shown marginally indented to form a succession of angular scallops.This illustrates a popular form of roofing sheet or shingle. Theparticular shape of the roofing sheet however is material. The anchorclips are preferably, though not necessarily, located within theindentations formed in the margin of the sheet or shingle. Such anchorclip comprises a short strip 2 of lexible rust resistant material,preferably, though not necessarily, copper zinc or zinc coated metal.One end of the strip 2 is rovided with a perforation 3 throu h w ich maybe driven an attachment nail 4 or securing the anchor clip to the roofstructure. The superposed roofing sheet whether shingle'or strip, isthen laid in overlapping relation with the attached anchor strip 2 sothat it completely covers and protects the nailed end. The free end ofthe anchor strip 2 is then bent u wardly and backwardly forming a bight5 w ich embraces the margin of the superposed roofing sheet 1. The freeend of the anchor strip 2-is provided with a spur 6 for embedment in theroofing sheet 1. This spur 1s a short angular tongue as shown at 6 1nFigs. 2, 3 and 5 cut from the material of the anchor strip 2 and bentout of the plane thereof for embedment in the roofing sheet 1. In Fig. 4there is shown a truncated conical barb 6b formed by perforating andindenting the anchor strip 2. The barb being centrally open, affords anannular ed e which may be driven into the material o the roong sheet 1.A portion of the roofing material displaced by compression underinfluence of the hammer blow is forced upward into the perforationresulting from the formation of the spur completely filling the same,and not only affording a further interlocking connection, but theperforation affords a relief vent for the roofing material undercompression of the hammer blows, and when expanded by summer heatinsures close conformity to the embedded spur. The preferred form ofanchorage spur is shown in Figs. 3 and 5 wherein the anchor strip 2 isprovided with a substantially triangular tongue formed from the materialthereof without severing the tongue from the strip leaving in the stripan angular perforation having its apex directed toward the bend or bight5 of the anchor member. Such anchor projection, whether it be in theform of a tongue, or a truncated conical barb,

is of such extent that it will not penetrate.

through the roofing sheet, but will be embedded therein, by a hammerblow as the free end of the strip is bent reversely into overably formedwith a perforation 3 to receive a y separate nail, for specialinstallation such nail may be secured to the underside of the strip bg'solderin welding, or otherwise, whereby t e clip an nail are integrallyunited prior to their application to the roof. Suchv construction isshown in Fig. 6.

By the construction shown and described the nails 4 are entirely coveredand concealed, and are protected against moisture, thereby avoiding rustand corrosion, and at the same time by the embedment of the attachmentspur or projection into the superposed roofing sieet, such sheet issecurely tied to prevent its bein raised by wind and the anchor clipscannot come loosened by expansion or contraction of either the sheetroofing or the material of such anchor member.

From the above description it will be apparent that there is thusprovided a device of the character described, possessing the particularfeatures of advantage before enumerated as desirable, but whichobviously is susceptible of modification in its form, proportions,detail construction and arrangement of parts without de arting from theprinciple involved or sacri cing any of its advantages.

While in order to comply with the statute the invention has beendescribed in language more or less specific as to structural features itis to be understood that the invention is not limited to the specificdetails shown, but that the means and construction herein disclosedcomprises the preferred form of several modes of putting the inventioninto effect, and the invention is, therefore, claimed in any of itsforms or modications within the legitimateand valid scope of theappended claims.

Having thus described my invention I claim:

1. In'a roofing clip of the character described, a flat strip of metalcapable of being medially bent upon itself substantially to arallelismabout the margin of a roofing s neet of the flexible type, one end ofwhich is adapted to be engaged with the roof structure be- -neath theroofing sheet, the exposed end of the strip having therein asubstantially tri-A angular perforation in inwardly spaced relation withthe terminal and lateral margins of the strip, the apex of which isdirected longitudinally of the strip, and an integral spur comprisingthe material Yremoved from said triangular perforation, said spurprojecting angularly from the said lane of the stri a distance less thanthe thic mess of the roo ng sheet to be secured, and a flat bearingsurface thereabout resting upon the roofing sheet,

formed by the adjacent portion of said strip intermediate said spur andthe tenal and lateral margins of the strip said perforation being formedand dis osed to receive therein the roofing material displaced by thehammer blows in driving the spur into engaging position.

2. An anchor clip for sheet roofing of the exible type comprising a flatiexible strip of metal to be bent upon itself substantially toparallelism about the margin of a roofing sheet to be secured, one endof the stri being adapted for engagement with a roo struc- V tunebeneath the sheet, the opposite end of the strip being perforated at apoint in spaced relation with the end ofthe strip and an integral spurformed by the material removed from such perforation projecting. fromthe strip a distance less than the thickness of the sheet in which it isto be 'embedded said perforation being formed and disposed to receivetherein the roofing material displaced by the hammer blows in drivingthe spur into en aging position.

n testimony whereof, I have hereuntol set my hand this 6th day ofSeptember, A. D.

GEORGE A. HOLMAN.

